Bread
When an ingredient for dog food is described as "is bread", it means that this ingredient consists of bread. Bread is a baked product made mainly from flour, water and often yeast or other leavening agents. It may also contain other ingredients such as salt, sugar, fats and various grains or seeds.
In dog food, bread may be used as a filler or as a texturizing element. It can help to improve the consistency of the food and make it suitable for making into certain shapes such as kibble or treats.
While bread in small amounts is generally not harmful to dogs, it does not provide high nutritional value and should not form a significant part of the diet. Some types of bread may contain ingredients that are not ideal for dogs, such as too much salt or sugar, and in some cases ingredients that can be harmful, such as raisins or onions.